CN115140226A - Vehicle body frame structure of saddle-ride type vehicle - Google Patents
Vehicle body frame structure of saddle-ride type vehicle Download PDFInfo
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- CN115140226A CN115140226A CN202210275382.3A CN202210275382A CN115140226A CN 115140226 A CN115140226 A CN 115140226A CN 202210275382 A CN202210275382 A CN 202210275382A CN 115140226 A CN115140226 A CN 115140226A
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- flat surface
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- 238000003466 welding Methods 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000005304 joining Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000000034 method Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
- B62K11/02—Frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention provides a body frame structure of a saddle-riding type vehicle, which can be applied to various vehicle types. A vehicle body frame structure of a saddle-ride type vehicle includes: a main frame including a first frame portion extending in a vehicle body front-rear direction and a second frame portion extending downward from a rear portion of the first frame portion toward a vehicle body lower side; and a seat rail including a first rail portion joined to the first frame portion and extending in a vehicle body front-rear direction, and a second rail portion joined to the second frame portion and extending in a vehicle body rear-upper direction, at least two of a joint portion of the first frame portion and the first rail portion, a joint portion of the second frame portion and the second rail portion, and a joint portion of the first rail portion and the second rail portion having a planar shape, and a size of a plane of each member joined at each joint portion being different.
Description
Technical Field
The present invention relates to a vehicle body frame structure of a saddle-ride type vehicle.
Background
Patent document 1 discloses the following vehicle body frame FR: in a front structure of a saddle-ride type vehicle, there are a main frame 1 and a rear frame 12, wherein the rear frame 12 includes a seat rail 12a forming an upper portion.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2015-205548
Disclosure of Invention
Problems to be solved by the invention
However, in the technique described in patent document 1, since the body frame is unique to each vehicle type, it is necessary to design and manufacture the body frame for each vehicle type, which causes a problem of an increase in cost.
The present invention has been made in view of the above problems, and provides a vehicle body frame structure that can be applied to various vehicle types.
Means for solving the problems
A vehicle body frame structure according to the present invention for achieving the above object is a vehicle body frame structure of a saddle-ride type vehicle, including:
a main frame including a first frame portion extending in a vehicle body front-rear direction and a second frame portion extending downward from a rear portion of the first frame portion toward a vehicle body lower side; and
a seat rail including a first rail portion joined to the first frame portion and extending in a vehicle body front-rear direction, and a second rail portion joined to the second frame portion and extending in a vehicle body upper-rear direction,
at least two of a joint portion of the first frame part and the first rail part, a joint portion of the second frame part and the second rail part, and a joint portion of the first rail part and the second rail part have a planar shape,
the size of the plane of each member joined at each joint is different.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, a vehicle body frame structure that can be applied to various vehicle types can be provided.
Drawings
Fig. 1 is an external view for explaining a structure of a saddle-ride type vehicle (two-wheeled vehicle).
Fig. 2 is a diagram for explaining an internal structure of the saddle-ride type vehicle.
Fig. 3 is a diagram illustrating an example of a vehicle body frame structure according to the first embodiment.
Fig. 4 is a diagram showing a configuration example of an upper side joint portion between the main frame and the seat rail according to the first embodiment.
Fig. 5 is a diagram showing a configuration example of a joint portion between the main frame and the lower side of the seat rail according to the first embodiment.
Fig. 6 is a view showing an example in which the mounting position and mounting angle of the seat rail with respect to the main frame are changed by the vehicle body frame structure according to the first embodiment.
Fig. 7 is a diagram illustrating an example of a vehicle body frame structure according to a second embodiment.
Fig. 8 is a diagram showing a configuration example of an upper side joint portion of the main frame and the seat rails according to the second embodiment.
FIG. 9 shows a first rail according to a third embodiment an example of a joint portion between the portion and the second rail portion.
Description of the reference numerals
1: a saddle-ride type vehicle; 300. 700: a vehicle body frame structure; 105: a main frame; 107: a seat rail; 1051: a first frame section; 1052: a second frame portion; 1071: a first rail portion; 1072: a second track portion.
Detailed Description
Hereinafter, embodiments will be described in detail with reference to the drawings. The following embodiments are not intended to limit the claims, and the present invention does not require all combinations of features described in the embodiments. Two or more of the plurality of features described in the embodiments may be arbitrarily combined. The same or similar components are denoted by the same reference numerals, and redundant description thereof is omitted.
(first embodiment)
Fig. 1 is an external view of a saddle-ride type vehicle 1 according to the embodiment. In fig. 2, the internal structure and the external shape of the saddle-type vehicle 1 are shown. In the drawings, an X axis, a Y axis, and a Z axis orthogonal to each other are shown for ease of understanding the structure. The X direction corresponds to the vehicle body front-rear direction, the Y direction corresponds to the vehicle width direction or the vehicle body left-right direction, and the Z direction corresponds to the vehicle body up-down direction. In the present specification, the terms front/rear, left/right (side), up/down, and the like denote relative positional relationships with respect to the vehicle body. For example, the terms "front" and "front" correspond to the + X direction, and the terms "rear" and "rear" correspond to the-X direction. Similarly, the description of the inside in the vehicle width direction (the inside of the vehicle)/the outside in the vehicle width direction (the outside of the vehicle) and the like shows a relative positional relationship with respect to the vehicle body.
In the present embodiment, the saddle-ride type vehicle 1 is a two-wheeled vehicle in which a rider (driver) can ride on the vehicle body 100, and includes front wheels 101 and rear wheels 102. A seat 103 on which a rider can sit is provided on the vehicle body 100. The saddle-ride type vehicle 1 further includes a head pipe 104, a main frame 105, a lower frame 106, a seat rail 107, a pivot frame 108, and a swing arm 109 in the vehicle body 100. Although not shown in fig. 1 and 2, the seat rail 107, the pivot frame 108, and the swing arm 109 are provided in a pair on the left and right. At least some of the frame members 105 to 108 may be collectively referred to as a vehicle body frame.
The head pipe 104 is disposed in front of the vehicle body 100, supports the handle so as to be rotatable, and allows the rider to change the direction of the front wheel 101 via the front fork by rotating the handle, thereby performing a steering operation.
The main frame 105 extends from the head pipe 104 in the vehicle body front-rear direction. In the present embodiment, the main frame 105 includes: a first frame 1051 extending from the head pipe 104 in the vehicle body longitudinal direction; and a second frame portion 1052 extending downward of the vehicle body from a rear portion of the first frame portion 1051. In the present embodiment, the lower frame 106 extends rearward and downward from the front portion of the first frame portion 1051.
The seat rail 107 supports a load applied to the seat 103. The seat rail 107 includes: a first rail portion 1071 joined to a rear portion of the first frame portion 1051 of the main frame 105 and extending in the vehicle body longitudinal direction; and a second rail portion 1072 that is joined to the second frame portion 1052 or the pivot frame 108 surrounding the second frame portion 1052 and extends upward and rearward of the vehicle body.
The pivot frame 108 extends downward around the second frame portion 1052 of the main frame 105, and is fixed to the second frame portion 1052. A swing arm 109 is supported by the pivot frame 108, and supports the rear wheel 102 in such a manner that the rear wheel 102 can swing.
Fig. 3 is a view showing details of an internal structure (a vehicle body frame structure 300) of the saddle-ride type vehicle 1 according to the present embodiment. In the present embodiment, a joint portion between the first frame portion 1051 and the first rail portion 1071, and a joint portion between the second frame portion 1052 (or the pivot frame 108 surrounding the second frame portion 1052) and the second rail portion 1072 are configured to have a planar shape. In the example of fig. 3, the joining portion is configured to have a planar shape in the regions 301 and 302, and the first rail portion 1071 and the second rail portion 1072 are joined in the region 303.
Fig. 4 is an enlarged view of the area 301 of fig. 3. The first frame 1051 of the main frame 105 has a tube structure, and a flat surface 401 is formed in a rear portion of the first frame 1051 in a part of the tube structure by press working in the axial direction. The first rail portion 1071 is formed of a pair of right and left rail portions (a left rail portion 1071a and a right rail portion 1071 b).
The first rail portion 1071 (in the illustrated example, the left rail portion 1071 a) has a circular tube structure, and a flat surface 402 is formed in a part of the tube structure by press working at a front portion of the first rail portion 1071a joined to the flat surface 401 formed in the first frame portion 1051. The flat surface 401 of the first frame 1051 and the flat surface 402 of the first rail portion 1071 (the left rail portion 1071a in the illustrated example) are joined by welding. The right rail portion 1071b also has a flat surface similar to the left rail portion 1071a, and a flat surface is similarly formed on the opposite side of the flat surface 401 of the first frame 1051. The flat surfaces are joined to each other by welding.
Since the flat surface is formed by press working, it is not necessary to prepare a member having a flat surface, and the weight can be reduced. Further, since a flat surface capable of welding is formed over a wide range in the axial direction of the pipe structure, the flat surface is easily formed.
In addition, the area of the flat surface 401 of the tube structure of the first frame portion 1051 is larger than the area of the flat surface 402 of the tube structure of the first rail portion 1071. This can improve the degree of freedom of the mounting position.
Fig. 5 is an enlarged view of area 302 of fig. 3. The second frame portion 1052 of the main frame 105 has a circular tube structure, and a pivot frame 108 is attached thereto, and the pivot frame 108 includes plate- like members 501 and 502 sandwiching a part of the tube structure from the vehicle body left-right direction. The second rail portion 1072 is formed of a pair of right and left rail portions (a left rail portion 1072a and a right rail portion 1072 b).
The second rail portion 1072 (in the illustrated example, the left rail portion 1072 a) has a circular tube structure, and a flat surface 503 is formed by press working in a front portion of the second rail portion 1072 to which the second frame portion 1052 (or the pivot frame 108 fixed to the second frame portion 1052) is joined. The plate-like member 501 of the pivot frame 108 and the flat surface 503 of the second rail portion 1072 (the left rail portion 1072a in the illustrated example) are joined by welding. The right rail portion 1072b also has a flat surface similar to the left rail portion 1072a, and the flat surface and the plate-like member 502 are joined by welding.
The flat surfaces of the plate- like members 501 and 502 have a larger area than the flat surface 503 formed in the pipe structure of the second rail portion 1072. This can improve the degree of freedom of the mounting position.
According to the present embodiment, the relative position (and the attachment angle) of the first frame portion of the main frame and the first rail portion of the seat rail can be freely adjusted. According to the vehicle body frame structure according to the present embodiment described with reference to fig. 4 and 5, for example, by adjusting the attachment position (attachment angle) of the seat rail 107 in the region 601 and the region 602 of the joint as shown in fig. 6, the degree of freedom of welding can be increased, and the rear end of the seat rail 107 can be fixed at the raised position as shown by arrows 603 and 604. Therefore, the relative positions of the main frame 105 and the seat rails 107 can be freely adjusted according to the vehicle type, and thus the vehicle body frame can be shared. That is, it is possible to provide a vehicle body frame structure that can be applied to various vehicle types.
[ modification ]
In the present embodiment, the following example is explained: in fig. 4, the second rail portion 1072 is joined to the plate-like member 501 of the pivot frame 108 at the joint portion of the area 302 in fig. 3, whereby the second frame portion 1052 of the main frame 105 and the second rail portion 1072 are joined via the plate-like member 501.
Similarly to the flat surface 401 formed by press working on a part of the tube structure of the first frame portion 1051, a flat surface may be formed by press working on a part of the tube structure of the second frame portion 1052, and the formed flat surface may be joined to the flat surface 503 of the second rail portion 1072 by welding. This enables the second frame portion 1052 and the second rail portion 1072 to be directly joined.
In the present embodiment, the plate- like members 501 and 502, which are a part of the pivot frame 108, are used, but the present invention is not limited to this. A plate-like member may be separately provided to sandwich a part of the tube structure of the second frame section 1052 of the main frame 105 from the vehicle body lateral direction.
(second embodiment)
In the first embodiment, an example in which the flat surface 401 is formed by press working a part of the first frame portion 1051 of the main frame 105 has been described with respect to the joint portion of the region 301 in fig. 3. In contrast, in the present embodiment, an example in which a cover member having a flat surface is attached to a part of the first frame 1051 will be described. The schematic structure of the saddle-riding vehicle 1 is the same as that of the first embodiment, and therefore, description thereof is omitted.
Fig. 7 is a view showing details of an internal structure (vehicle body frame structure 700) of the saddle-type vehicle 1 according to the present embodiment. The region 701 is the same as fig. 3 except for the configuration. Next, details of the region 701 in fig. 7 will be described with reference to fig. 8.
As shown in fig. 8, the first frame 1051 has a circular tube structure, and a cover member 801 is attached and fixed to a part of the tube structure, and the cover member 801 covers the periphery of the part of the tube structure and has a flat surface (a left flat surface 801a in the illustrated example) on the side in the vehicle body left-right direction. The first rail portion 1071 (the left rail portion 1071a in the illustrated example) has a tube structure as in the first embodiment, and a flat surface 802 is formed in a part of the tube structure by press working at a front portion of the first rail portion 1071 (the left rail portion 1071a in the illustrated example) to be joined to the cover member 801 fixed to the first frame portion 1051. The flat surface 801a of the cover member 801 and the flat surface 802 of the first rail portion 1071 (the left rail portion 1071a in the illustrated example) are joined by welding. The right rail portion (not shown) also has a flat surface (not shown) similar to the left rail portion 1071a, and the flat surface is joined to a flat surface (not shown) on the right side of the cover member 801 by welding.
According to the present embodiment, the relative position (and the mounting angle) of the first frame portion of the main frame and the first rail portion of the seat rail can be freely adjusted. Further, since the cover member 801 is provided, it is not necessary to press the circular pipe structure of the main frame 105, and thus the frame can maintain the frame strength without being deformed. The flat surface 801a of the cover member 801 has a larger area than the flat surface 802 formed in the circular tube structure of the first rail portion 1071. This can improve the degree of freedom of the mounting position.
(third embodiment)
In the present embodiment, an example of a joint portion between the first rail portion 1071 and the second rail portion 1072 will be described. Fig. 9 isbase:Sub>A view showing an example of joining with the second rail portion 1072 in the vicinity of the joining plate 702 of fig. 7, and isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A in the vehicle body front-rear direction.
The engagement plate 702 may be a part of the first rail portion 1071, or may be another member fixed to the first rail portion 1071. The joining plate 702 has a left joining plate 702a and a right joining plate 702b, and is joined by inserting the second rail portions 1072 (the left rail portion 1072a and the right rail portion 1072 b) into the inside thereof and welding the inside thereof. More specifically, the flat surface 902 on the inner side of the left joining flat plate 702a is welded to the flat surface 901, and the flat surface 901 is formed by press working on a part of the left rail portion 1072a having a circular tube structure. Similarly, the flat surface 903 on the inner side of the right joining flat plate 702b is welded to the flat surface 903, and the flat surface 903 is formed by press working on a part of the right rail portion 1072b having a circular tube structure.
Accordingly, in the region 303 shown in fig. 3, the relative mounting position and mounting angle of the first rail portion 1071 and the second rail portion 1072 can be freely adjusted. In the case of the vehicle body frame having the structure of the present embodiment, the degree of freedom in the relative attachment position and the attachment angle of the main frame 105 and the seat rail 107 can be increased by configuring the joint portion to have a planar shape in at least one of the region 301 and the region 302 in fig. 3.
As described in the above embodiments, at least two joint portions of the joint portion between the first frame portion 1051 and the first rail portion 1071, the joint portion between the second frame portion 1052 (or the pivot frame 108 surrounding the second frame portion 1052) and the second rail portion 1072, and the joint portion between the first rail portion 1071 and the second rail portion 1072 are configured to have a planar shape. That is, the combination of the region 301 and the region 302, the combination of the region 302 and the region 303, the combination of the region 301 and the region 303, or all of the regions 301 to 303 are configured such that the joint portion has a planar shape. The members have different sizes of flat surfaces to be joined at the joining portions (that is, the size of the flat surface of one member is larger than that of the other member).
This allows the relative position (attachment angle) between the main frame 105 and the seat rail 107 to be freely adjusted. Therefore, the vehicle body frame according to the present embodiment can be applied to various vehicle types, and thus the vehicle body frame can be shared. In addition, since it is not necessary to design and manufacture the body frame individually for each vehicle type, the cost can be reduced. Also, errors in the positioning of the members with respect to each other can be tolerated.
In the above embodiments, the example has been described in which the area of the flat surface of one member is made large and the area of the flat surface of the other member is made small at the joint portion, whereby the welding portion can be selected flexibly, but the present invention is not limited to this. For example, a plurality of small-area flat surfaces may be provided on one member, and the flat surface of the other member may be joined to any one of the small-area flat surfaces by welding. For example, the flat surface 401 shown in fig. 4 may be provided in a plurality of places with a reduced area, and may be joined to the flat surface 402 of the first rail portion 1071 (the left rail portion 1071a in the illustrated example) at any one place. The same structure may be adopted for other joint portions. Since the area of press working can be reduced, the manufacturing cost can be reduced.
The present invention is not limited to the above-described embodiments, and various modifications and changes can be made within the scope of the present invention.
< summary of the embodiments >
A vehicle body frame structure (e.g., 300) according to a first aspect is a vehicle body frame structure of a saddle-riding type vehicle (e.g., 1), and includes:
a main frame (e.g., 105) including a first frame portion (e.g., 1051) extending in a vehicle body front-rear direction and a second frame portion (e.g., 1052) extending from a rear portion of the first frame portion toward a vehicle body lower side; and
a seat rail (e.g., 107) including a first rail portion (e.g., 1071) joined to the first frame portion and extending in the vehicle body front-rear direction and a second rail portion (e.g., 1072) joined to the second frame portion and extending in the vehicle body upper-rear direction,
at least two of a joint portion of the first frame part and the first rail part, a joint portion of the second frame part and the second rail part, and a joint portion of the first rail part and the second rail part have a planar shape,
the size of the plane of each member joined at each joint portion is different.
Thereby, the relative position (and the mounting angle) of the main frame and the seat rail can be freely adjusted. Therefore, the vehicle body frame can be applied to various vehicle types, and thus the vehicle body frame can be shared. In addition, since it is not necessary to design and manufacture the vehicle body frame separately according to the vehicle type, the cost can be reduced. Also, errors in the positioning of the members with respect to each other can be tolerated.
In the vehicle body frame structure (for example 300) according to the second aspect,
the first frame part has a circular tube structure, a flat surface (401, for example) is formed in a part of the tube structure at a rear part of the first frame part,
the first rail portion has a circular tube structure, a flat surface (e.g., 402) is formed in a part of the tube structure at a front portion of the first rail portion joined to the first frame portion,
the flat surface of the first frame portion and the flat surface of the first rail portion are joined by welding.
Thereby, the relative position (and the mounting angle) of the first frame portion of the main frame and the first rail portion of the seat rail can be freely adjusted.
In the vehicle body frame structure (e.g. 300) relating to the third mode,
the area of the flat face (e.g. 401) of the tube formation of the first frame part is greater than the area of the flat face (e.g. 402) of the tube formation of the first rail part.
This enables the flat surface of the first rail portion to be joined to an arbitrary position of the wide flat surface of the first frame portion.
In the vehicle body frame structure (e.g. 300) relating to the fourth aspect,
the flat face (e.g., 401) of the tube configuration of the first frame part and the flat face (e.g., 402) of the tube configuration of the first rail part are formed by press working.
This eliminates the need for other members for joining, and therefore reduces the number of parts and weight.
In the vehicle body frame structure (for example 700) according to the fifth aspect,
the first frame part has a circular pipe structure, a cover member (for example, 801) is attached to a part of the pipe structure, the cover member (for example, 801) covers the periphery of the part of the pipe structure, and has a flat surface (for example, 801 a) on the side in the left-right direction of the vehicle body,
the first rail portion has a circular tube configuration, a flat face (e.g., 802) is formed in a part of the tube configuration at a front portion of the first rail portion joined to the first frame portion,
the flat surface (e.g., 801 a) of the cover member and the flat surface (e.g., 802) of the first rail portion are joined by welding.
Thus, the relative position (and the mounting angle) of the first frame portion of the main frame and the first rail portion of the seat rail can be freely adjusted. Further, by providing the cover member having a flat surface, it is not necessary to deform the pipe structure of the first frame portion, and therefore the frame strength can be maintained.
In the vehicle body frame structure (e.g. 700) relating to the sixth aspect,
the flat face (e.g., 801 a) of the cover member has an area larger than that of the flat face (e.g., 802) formed at the tube structure of the first rail portion.
This allows the flat surface of the first rail portion to be joined to an arbitrary position of the wide flat surface of the cover member fixed to the first frame portion.
In the vehicle body frame structure (for example 700) relating to the seventh aspect,
the flat surface of the tube structure of the first rail portion is formed by press working.
This eliminates the need to attach another member for joining to the first rail portion, and therefore, the number of parts can be reduced, and weight reduction can be achieved.
In the vehicle body frame structure (e.g., 300, 700) relating to the eighth aspect,
the second frame part has a circular tube structure, and plate-like members (e.g., 501 and 502) sandwiching a part of the tube structure from the left-right direction of the vehicle body are attached,
the second rail portion has a circular tube configuration, a flat surface (e.g., 503) is formed at a front portion of the second rail portion joined to the second frame portion,
the flat surfaces of the plate-like members (e.g., 501, 502) and the flat surfaces (e.g., 503) of the second rail portion are joined by welding.
Thereby, the relative position (and the mounting angle) of the second frame portion of the main frame and the second rail portion of the seat rail can be freely adjusted.
In the vehicle body frame structure (e.g., 300, 700) relating to the ninth aspect,
the area of the flat surface of the plate-like member (e.g., 501, 502) is larger than the area of the flat surface (e.g., 503) formed at the tube structure of the second rail portion.
This allows the flat surface of the second rail portion to be joined to an arbitrary position of the wide flat surface of the plate-like member fixed to the second frame portion.
In the vehicle body frame structure (e.g., 300, 700) according to the eleventh aspect,
the flat face (e.g., 503) of the tube structure of the second rail portion is formed by press working.
This eliminates the need to attach another member for joining to the second rail portion, thereby reducing the number of parts and weight.
Claims (10)
1. A vehicle body frame structure of a saddle-riding type vehicle, comprising:
a main frame including a first frame portion extending in a vehicle body front-rear direction and a second frame portion extending downward from a rear portion of the first frame portion toward a vehicle body lower side; and
a seat rail including a first rail portion joined to the first frame portion and extending in a vehicle body front-rear direction, and a second rail portion joined to the second frame portion and extending in a vehicle body upper-rear direction,
at least two of a joint portion of the first frame portion and the first rail portion, a joint portion of the second frame portion and the second rail portion, and a joint portion of the first rail portion and the second rail portion have a planar shape,
the size of the plane of each member joined at each joint portion is different.
2. The vehicle body frame configuration according to claim 1,
the first frame part has a circular tube structure, a flat surface is formed in a part of the tube structure at a rear portion of the first frame part,
the first rail portion has a circular tube structure, a flat surface is formed in a part of the tube structure at a front portion of the first rail portion joined to the first frame portion,
the flat surface of the first frame portion and the flat surface of the first rail portion are joined by welding.
3. The vehicle body frame configuration according to claim 2,
the area of the flat face of the tube formation of the first frame part is greater than the area of the flat face of the tube formation of the first rail part.
4. The vehicle body frame configuration according to claim 2,
the flat surface of the tube structure of the first frame portion and the flat surface of the tube structure of the first rail portion are formed by press working.
5. The vehicle body frame configuration according to claim 1,
the first frame section has a circular tube structure, a cover member is attached to a part of the tube structure, the cover member covering a periphery of the part of the tube structure, and has a flat surface on a side portion in a vehicle body right-left direction,
the first rail portion has a circular tube structure, a flat surface is formed in a part of the tube structure at a front portion of the first rail portion joined to the first frame portion,
the flat surface of the cover member and the flat surface of the first rail portion are joined by welding.
6. The vehicle body frame configuration according to claim 5,
the flat surface of the cover member has an area larger than that of the flat surface formed at the tube structure of the first rail portion.
7. The vehicle body frame configuration according to claim 5,
the flat surface of the tube structure of the first rail portion is formed by press working.
8. The vehicle body frame configuration according to claim 1,
the second frame portion has a circular tube structure, and is attached with a plate-like member that sandwiches a part of the tube structure from the left-right direction of the vehicle body,
the second rail portion has a circular tube configuration, a flat surface is formed at a front portion of the second rail portion joined to the second frame portion,
the flat surface of the plate-like member and the second the flat surfaces of the rail portions are joined by welding.
9. The vehicle body frame configuration according to claim 8,
the flat surface of the plate-like member has an area larger than that of the flat surface formed at the tube structure of the second rail portion.
10. The vehicle body frame configuration according to claim 8,
the flat surface of the tube structure of the second rail portion is formed by press working.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-058443 | 2021-03-30 | ||
| JP2021058443A JP7230091B2 (en) | 2021-03-30 | 2021-03-30 | Body frame structure of straddle-type vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115140226A true CN115140226A (en) | 2022-10-04 |
| CN115140226B CN115140226B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210275382.3A Active CN115140226B (en) | 2021-03-30 | 2022-03-21 | Body frame structure of saddle-riding type vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7230091B2 (en) |
| CN (1) | CN115140226B (en) |
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| CN104943789A (en) * | 2014-03-28 | 2015-09-30 | 本田技研工业株式会社 | Saddle type vehicle frame |
| CN105564562A (en) * | 2014-10-31 | 2016-05-11 | 雅马哈发动机株式会社 | Straddle-type vehicle |
| CN110431070A (en) * | 2017-03-27 | 2019-11-08 | 本田技研工业株式会社 | The body structure of Straddle-type vehicle |
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| CN106379453B (en) * | 2015-07-24 | 2019-11-01 | 本田技研工业株式会社 | Straddle-type vehicle |
| JP2018111404A (en) * | 2017-01-11 | 2018-07-19 | スズキ株式会社 | Vehicle body frame structure of motorcycle and motorcycle |
| JP6739650B2 (en) * | 2017-07-20 | 2020-08-19 | 本田技研工業株式会社 | Body frame structure |
| JP6708687B2 (en) * | 2018-03-28 | 2020-06-10 | 本田技研工業株式会社 | Motorcycle seat frame |
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- 2021-03-30 JP JP2021058443A patent/JP7230091B2/en active Active
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| JPS5340948U (en) * | 1976-09-11 | 1978-04-08 | ||
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| JPH1016859A (en) * | 1996-07-05 | 1998-01-20 | Honda Motor Co Ltd | Frame structure for motorcycle |
| CN201283973Y (en) * | 2008-09-19 | 2009-08-05 | 重庆宗申技术开发研究有限公司 | Frame of curved beam motorcycle |
| CN103241321A (en) * | 2012-02-07 | 2013-08-14 | 本田技研工业株式会社 | Two-wheel motorcycle |
| CN104943789A (en) * | 2014-03-28 | 2015-09-30 | 本田技研工业株式会社 | Saddle type vehicle frame |
| CN105564562A (en) * | 2014-10-31 | 2016-05-11 | 雅马哈发动机株式会社 | Straddle-type vehicle |
| CN110431070A (en) * | 2017-03-27 | 2019-11-08 | 本田技研工业株式会社 | The body structure of Straddle-type vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115140226B (en) | 2024-02-06 |
| JP2022155104A (en) | 2022-10-13 |
| JP7230091B2 (en) | 2023-02-28 |
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